Illknow
Written by Frank Loesser
Date 1950
Source Guys and Dolls
Publisher Frank Music Corp.

Wayne and Wanda attempt to sing I'll Know in episode 117 of The Muppet Show. Wayne gets distracted by a pretty girl who walks across the stage and chases after her, making Wanda jealous and ending the number.

The song was spoofed in Episode 3623 of Sesame Street, where Humphrey sings about how he'll meet his true love.

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